Crop protection

Acelepryn insecticide now labeled for ornamentals

US: Targeted insecticide offers extended residual protection to help save time and labor

Acelepryn insecticide from Syngenta has been approved by the U.S. Environmental Protection Agency for use in ornamental nurseries as well as greenhouses. Powered by the active ingredient chlorantraniliprole, Acelepryn provides long-lasting control of Japanese beetles, sawfly larvae and leaf-feeding…

10 questions about Xylella fastidiosa

Xylella fastidiosa is a bacterium that causes a lot of damage and therefore has a quarantine status within the EU. The experts at Wageningen University & Research use their knowledge about plant pathogenic bacterial diseases for the detection and recognition of this bacterium and later possibly also…

New Zealand: Why nurseries should get involved in the PPBS

A pilot for the Plant Production Biosecurity Scheme (PPBS) has been underway in 20 nurseries around New Zealand since February and the benefits of the scheme are fast becoming apparent, says PPBS project lead John Liddle. The PPBS is a systematic approach to biosecurity risk management. The scheme’s…

CAN (ON): IPM in August

Lots of hairy caterpillars can be found feeding openly on foliage of nursery and landscape ornamentals this time of year, like Hickory tussock Moth (Lophocampa caryae, Family: Erebidae) and the very common Virginian tiger moth (Spilosoma virginica, Family: Erebidae, Subfamily Arctiinae). Try to avoid the Hickory Tussock moth…

Plant protection workshops coming to Northern Australia

Nursery & Garden Industry Australia has teamed up with the Northern Territory Government and the Australian Department of Agriculture to deliver a series of free and practical plant protection workshops for growers in Northern Australia. Held across the NT, QLD and WA, the workshops will assist…

GroentenFruit Huis and Greenhouse Horticulture Netherlands respond to small matter

"Fruit moth is an African problem; no problems in Dutch peppers"

"We did not receive any notification from bell pepper growers that the African fruit moth has been encountered in the greenhouse," Sjaak van der Tak, chairman of Greenhouse…

CAN (ON): CleanFARMS collection dates released

CleanFARMS will be offering its obsolete and unwanted pesticides collection campaign this fall. This program allows farmers to bring in unwanted or obsolete agricultural…

UK: DCF funded student makes headway in Agapanthus pest project

The David Colegrave Foundation (DCF) is delighted to be funding Julie Lin, a Biological Sciences student at Imperial College London, as part of a Plant Health Undergraduate Studentship. DCF worked with the Royal Society of Biology (RSB) to select a plant health project for its Plant Health Undergraduate…

Increased number found in Kenyan, Tanzanian roses

NL: "False codling moth is a serious threat, but the risks should not be exaggerated"

A little animal causes a big fuss in the ornamental and horticultural industry today. Dutch media report how an increase in the discovery of the false codling moth…

Eternal Flowers produces own pest control products, fertilizers:

Ecuadorian grower goes for 100% organic

"If we can do it, why can't chemical suppliers?" says Adrian Moreno of Eternal Flower. This Ecuadorian Gypsophila and Hypericum grower invested years in producing their own organic fertilizers and pesticides. "I think it is good that everyone in the industry sees that it is possible to be a 100% organic…

CAN (ON): Which type of crop protection is effective for whitefly?

Efficacy trials are key to keeping growers informed about which chemicals currently work and which don’t for Bemisia whitefly. Entomologists at the University of Maryland and Delaware recently did such a study, and included newer pesticide registrations. A typical poinsettia crop in Ontario can battle…

Plant viruses may be reshaping our world

The community of viruses is staggeringly vast. Occupying every conceivable biological niche, from searing undersea vents to frigid tundra, these enigmatic invaders, hovering between inert matter and life, circumnavigate the globe in the hundreds of trillions. They are the most abundant life forms on…

A new collaborative research project managed by Hort Innovation

Defending Australia against the number 1 crop killer - Xylella

What has been dubbed the number one plant biosecurity threat to Australia is now under the spotlight through a new Hort Innovation funded project aimed at building Australia’s…

US: OHP adds Sarisa and Pradia Insecticide to portfolio

OHP is excited to announce the introduction of Sarisa Insecticide and Pradia Insecticide to the ornamental nursery and greenhouse market. Sarisa Insecticide Saricsa Insecticide is a revolutionary new product for broad-spectrum control of insect pests on ornamental greenhouse and nursery stock. Sarisa™…

using LED as an additional tool

Early disease detection with SporeCam sensors

LumiGrow is launching a new product-line of early disease detection sensors and services. The LumiGrow SporeCam sensors (powered by Scanit Technologies) can capture, inspect, and classify harmful airborne spores for diseases such as Powdery Mildew and Botrytis. The result is growers can optimize pest…

Andermatt Biocontrol acquires 22% shareholding in Agricheck SRL

The Swiss-based company, Andermatt Biocontrol, took 22% shareholding stake in the Argentinian company Agricheck SRL. Agricheck is a leading provider of biological solutions…

CAN (ON): Research investment to develop new on-farm production practices

Ontario's government is investing in research to develop new practices and on-farm solutions for fruit, vegetable and field crop farmers to prevent or control costly crop…

OHP FireWorxx herbicide now available

"A great tool where fast burn down is required”

OHP announces the launch and immediate availability of FireWorxx Herbicide, an OMRI-listed, fast-acting biological herbicide that is active against weeds, algae, and moss. Using a non-staining ammonium soap of fatty acids, FireWorxx is a non-selective herbicide that controls or suppresses many…

US: Judge criticizes Monsanto, but lowers Roundup damage award

The judge in the first federal court trial of lawsuits by cancer victims who used Monsanto’s Roundup herbicide criticized the company’s apparent indifference to health and…

Monthly scouting guide for poinsettia problems

Okay, so Poinsettias don’t really get that many problems. But when issues arise, they can hit a crop fast and hard. Whitefly, Lewis mite, root rots, and nutritional issues can all quickly derail a quality crop. OnFloriculture presents a month by month guide on what you should be looking for to prevent…

US (OH): Finding ways to make flowers thrive

As someone who researches flowers, Michelle Jones often hears she has the ideal job. How else could you characterize it? Even in winter, brightly colored flowers grow all around her—in her greenhouses, in her office, and in “growth chambers” each about the size of a master bedroom closet, but packed with…

UK: HTA drives the plant health agenda forward

Continuing the HTA agenda and prioritisation of plant health by the HTA, Alistair Yeomans will be taking on a new role to drive this forward focussing on the development of the plant health agenda, notably advancing the Plant Health and Biosecurity Alliance and securing external funding to support its…

Discovery reveals secrets about how ghost orchids reproduce

Deep in remote Florida swamps, a team of researchers and photographers have made a new discovery that upends what we thought we knew about the ghost orchid, one of the world’s most iconic flowers, and how it reproduces. These rare, charming orchids were long thought to be pollinated by a single insect:…

Capsanem controls box tree moth biologically

The box tree moth has caused severe damage to this popular tree/hedge since it was first detected in Europe in 2007. Capsanem, an effective environmentally sustainable solution based on entomopathogenic nematodes, has proven to control this destructive caterpillar which has left a trail of destruction…

CAN (ON): Japanese beetles are in flight

The Japanese beetle season is upon us once again. Adults were spotted this week in Southern Ontario. Shipping outside Ontario or need to meet the requirements of the JB module for the Greenhouse Certification Program? Not sure what’s required? This post by Sarah Jandricic, Greenhouse Floriculture IPM…

The challenges of managing pests and diseases in retail settings

Greenhouse growers work tirelessly each year to produce high-quality plants for spring sales. Of all of the different factors involved in growing bedding plants, pest and disease management is one of the most important. Though monitoring for pests and diseases and taking corrective action ends at…

US (TX): 'Pesky pests' intercepted in peonies

U.S. Customs and Border Protection (CBP) agriculture specialists at Dallas/Fort Worth International Airport (DFW) discovered an unwelcome pest in a shipment of peonies. CBP agriculture specialists intercepted this type of pest in a shipment at DFW. Photo credit: USDA-APHIS-PPQ, San Diego PIS. This was…

Austria, the first European country to ban glyphosate

With the ban on the use of glyphosate approved by the Viennese parliament on Tuesday 2 July, Austria has become the first EU country to ban the use of this weed killer on a…

CAN (AB): Horticulture checklist for July

Robert Spencer, commercial horticulture specialist at the Alberta Ag-Info Centre, has published a “to do” list for the month of July. The list includes the following items for greenhouse ornamentals: If holding plants for extended periods, ensure plants are kept healthy, fertilized and free from pests.…

Tips to solve the following problems with Ranunculus Cultivation

Last season, several growers in Northern Europe experienced problems with Ranunculus cultivation. These problems were of various natures. Schoneveld Breeding would like to try to tackle these problems together for the coming season, to successfully continue cultivation. Below is an overview of the issues…

New participative app to follow insects

GeoInsecta is a community application that aims at following the presence of some targeted insects in the fields or in the gardens. It’s dedicated not only to professionals but also to hobby gardeners. It answers to a need that has been raised by many people who wanted to protect their crops efficiently:…

The importance of crop scouting

Crop Scouting is referred to as monitoring, inspection or surveillance of crop for general plant health, i.e. insect pests, mites, diseases, nutritional and other disorders. It involves gathering and recording of information about a particular crop on a regular basis to enhance the process of making informed crop management…

Bumblebees – Keep them cool this summer

"The need to keep your busy pollinators cool increases. Keeping an eye on the temperature in the greenhouse is more important than ever for your bumblebees to be able to function optimally and give the best pollination results for your crop", says Koppert’s Pollination Product Manager, Remco Huvermann.…

"Swirski-Mite Plus now in even better shape"

Swirski-Mite Plus is a biological solution from Koppert Biological Systems for the control of thrips and whitefly in many crops worldwide. The packaging containing predatory mites will have a ‘new look’ as of 8 July. "This successful biological control product containing predatory mites will have a new…

CAN (BC): Nursery shut down due to phytophthora ramorum

On Friday, June 21, Island View Nursery underwent a randomly selected inspection by the Canadian Food Inspection Agency for Phytophthora ramorum (an airborne spore-producing plant pathogen that is transmitted through wind, animals, soil and water that may impact certain host-type plants). "This national…

"Poinsettia cultivation has to apply IPM"

"Chemical crop protection is not sustainable, regardless of the sales market. Now is the time to make the transition. Those who wait too long to make a change will be sidelined in the future", says ornamentals cultivation consultant Richard Saarloos. There are differences between the various supermarket…

NEMguard active ingredient now on PPPL

Garlic extract officially added to PPPL and PoKeMon positive list

The active ingredient in NEMguard, garlic extract, has been officially added to the PPPL (Plant Protection Product List) and PoKeMon positive list by FoodExperts S.L. As the…

European Commission increases support for the EU's beekeeping sector

The European Commission will provide €120 million to the EU's beekeeping sector over the next three years to support its essential role in agriculture and the environment. This represents an increase of €12 million compared to the support provided for the period from 2017 to 2019. EU Commissioner for…

US (WV): Boxwood blight detected at residential, commercial landscapes

The West Virginia Department of Agriculture (WVDA) has detected boxwood blight at several residential and commercial landscapes throughout West Virginia. Boxwood blight was…

Darren Tongue, OMEX

Summer horticulture tips: Tackling Mildew and Blight

OMEX’s Darren Tongue takes a look at how Mildew and Blight affect your plant growth, and how to tackle the issue: “Powdery mildew is a fungal disease that affects a wide range…

US: New changes in OHP Pedestal Insecticide

There are some key changes upcoming with OHP’s Pedestal Insecticide , an insect growth regulator against Thrips and other pests. Effective immediately, any new Pedestal…

Poinsettias: To spray or not to spray, that is the question

'Tis poinsettia sticking season once again, and the question always comes down to the same thing: do I use chemicals to control Bemisia whitefly and hope it works this year? Or do I switch to biological control? In this article, Sarah Jandricic, Greenhouse Floriculture IPM Specialist, OMAFRA, shows some…

"Illegal plant protection substances found in Poland"

After two months of investigation, the services in Poland have detected a record number of 92,000 kilos of illegal plant protection substances, which is three times more than a year earlier. The investigation was the third common operation of Polish services with Europol and the fourth general European…

First report of Xylella fastidiosa in Israel

The NPPO of Israel recently informed the EPPO Secretariat of the first record of Xylella fastidiosa (EPPO A2 List) on its territory. During a survey carried out in 2017-2018, a few symptomatic almond (Prunus dulcis) trees were discovered and subsequently eradicated. More recently, symptomatic almond…

Ethiopia: 261 trained at Sher Afriflora

Dudutech Ethiopia and the Dudutech Training Department joined forces to roll out a training programme for Sher Afriflora, spanning 261 employees and three of their farms in Ethiopia. The core focus of the training was geared towards raising basic IPM awareness among the participants, including over 60 at…

Remote application of insecticide in greenhouses becoming more popular in Turkey

The Turkish Ministry of Agriculture Agricultural Research and Policies General Directorate (TAGEM) has developed a remote automatic insecticide dispenser machine to be used in greenhouses in order to minimize the overuse of chemicals and to reduce the exposure of agricultural workers to these chemicals.…

Dame Helen Mirren warns against the dangers of xylella

Dame Helen Mirren has revealed her Italian olive grove at the home where she spends four months a year is under threat from a deadly plant disease as she warns British…

UK: Walberton’s Crop Protection Team back up to full strength

After a few years of high staff turnover in the area of Crop Protection, Walberton Nursery’s Technical Department are now in a very strong position. Crop Protection is a very specialist area and finding staff to fill these positions can often be difficult. Following the appointments of Paul Dyer…

Kenya: KEPHIS in drive to secure international horticultural markets through management of quarantine pests

The Kenya Plant Health Inspectorate Service (KEPHIS) is working with over 200 horticultural produce exporters to the European Union (EU) and Australian markets to formulate…

Microbial insecticide gets new formulation

OHP announces a key formulation change to its Ancora Microbial Insecticide, designed to make spray applications easier in a greenhouse and nursery. OMRI listed and approved for organic production, Ancora contains a naturally-occurring fungus that infects both foliar and soil-dwelling pests such as…

Vestaron raises $40 million in Series B Financing

Vestaron announces its $40 million Series B Financing, led by Novo Holdings A/S. Novo Holdings joins continuing investors Anterra Capital, Cultivian Sandbox, Open Prairie…

SCEPTREplus trials

Tackling rust in ornamental plants and plums

In two SCEPTREplus trials across plum and ornam ental plants this year, a range of plant protection products (PPPs) will be screened for efficacy against rust. Some actives aim to prevent rust spores from germinating, whilst others trigger the plant’s defences, priming it for an attack. Ornamental plants…

UK: Shortlist announced for The Biopesticide Awards 2019

Bionema Limited in conjunction with Swansea University are hosting the inaugural Biopesticide Summit on 2-3 July 2019 to address the pressing need to develop alternatives to…

Impacts and residual longevity of systemic insecticides on pollinators in ornamental plant production system

Floriculture professionals value the importance of flowers to human well-being and seek sustainable production systems that enhance the environment and preserve habitat for bees, birds and other wildlife. Over the last few years, there has been the perception that the use of Neonic pesticides at any…

Root disease profile: Thielaviopsis

Thielaviopsis root rot, caused by the fungal pathogen Thielaviopsis basicola, can occur in over 150 species of greenhouse and perennial crops, including astilbe, begonia, calla lilies, calibrachoa, cyclamen, fuchsia, gaillardia, geranium, gerbera, kalanchoe, lupine, pansy, penstemon, peony, petunia,…

Research shows perennial flower strips in orchards help with pest control

Researchers have published a study in Agriculture, Ecosystems & Environment that shows planting strips of perennial flowers between orchard rows can help with pest control. Trials in seven European countries showed higher numbers of natural enemies in orchards with perennial flower strips, and they…

HTA at Scotland’s Plant Health Conference

The Horticultural Trades Association were delighted to support Scotland’s Plant Health Conference that took place in Edinburgh on the 28 May. Professor Gerry Saddler, Chief Plant Health Officer for Scotland and Head of Science and Advice for Scottish Agriculture (SASA), welcomed delegates to the…

Daisies trick aphids with natural aphid alarm pheromone

A daisy species has developed a natural mimicry defence against aphids by producing an alarm pheromone that triggers a flight response in the insects. The very same pheromone attracts ladybirds, looking for aphid prey s that aren't actually there. For the daisies, it's a doubly effective form of…


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